981332654 has 4 divisors (see below), whose sum is σ = 1471998984. Its totient is φ = 490666326.

The previous prime is 981332641. The next prime is 981332657. The reversal of 981332654 is 456233189.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 456233189 = 1867 ⋅244367.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (981332657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 245333162 + ... + 245333165.

It is an arithmetic number, because the mean of its divisors is an integer number (367999746).

Almost surely, 2^981332654 is an apocalyptic number.

981332654 is a deficient number, since it is larger than the sum of its proper divisors (490666330).

981332654 is a wasteful number, since it uses less digits than its factorization.

981332654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490666329.

The product of its digits is 155520, while the sum is 41.

The square root of 981332654 is about 31326.2294890400. The cubic root of 981332654 is about 993.7384258557.

The spelling of 981332654 in words is "nine hundred eighty-one million, three hundred thirty-two thousand, six hundred fifty-four".